Trolley-support for trolley-cars



{No Model) 0. HOLZ.

TROLLEY SUPPORT FOR TROLLEY CARS.

No. 569,756. Patented Oct. 20, 1896.

L,\/J I Z LJK WITNESS; INVENTOR Arms/15W.

44: mm: PETERS ca. menu-mm. "unsmnawu c UNITED STATES PATENT Enron,

OTTO IIOLZ, OF SGIIENECTADY, NEW YORK.

TROLLEY-SUPPO RT FOR TROLLEY-CARS.

SPECIFICATION forming part of Letters Patent N 0. 569,756, dated October20, 1896.

Application filed May 2, 1896. Serial No. 590,008. (No model.)

To all whom it may concern.-

Be it known that I,'OTTO How, a citizen of the United States, and aresident of Schenectady, in the county of Schenectady and State of NewYork, have invented certain new and useful Improvements inTrolley-Supports for Trolley-Cars, of which the following is aspecification, reference being had to the accompanying drawings, formingapart thereof, in which similar letters of reference indicatecorresponding parts This invention relates to trolley-arms andtrolley-wheels for trolley-cars; and the object thereof is to provide atrolley-arm with a spring-supported trolley wheel or wheels, a furtherobject being to provide a combination of two trolley-wheels, which areprovided with peripheral grooves and which are adapted to be supportedside by side, and between which the main trolley wire or conductorpasses.

The invention is fully disclosed in the followingspccification, of whichtheaccompanying drawings form a part, in which- Figure 1 is a side viewof a section of a trolley-arm, showing my improvement connectedtherewith, part of the construction being shown in section; Fig. 2, anend view thereof 5 and Fig. 3, a view similar to Fig. 1, showing amodified form of construction, the trolley-wheels and their immediatesupports bein g only shown.

In the drawings forming part of this specification, A represents atrolley-arm, which in practice is rigidly secured to a car and whichprojects backwardly and upwardly at an inclination to the top of the carand which is provided at its upper end with a horizontalbackwardly-directed extension a, and mounted thereon is a verticaloblong frame B, which is composed of side pieces I) and end pieces b andthrough which passes a vertical rod D, which isprovided at its upper endwith two spring-arms G, which are curved outwardly and upwardly, so asto form extensions or shafts g, on each of which is mounted a wheel K,each of which is provided with a peripheral groove in.

The rod D extends vertically through the frame B and through theextension a of the arm A and is free to move vertically therein,

and mounted thereon within said frame is a spiral spring H, one end ofwhich bears upon the lower portion of the frame B and the upper end ofwhich bears upon a disk or plate It, secured to the rod D, and it willthus be seen that said rod and the wheels K, which are supportedthereon, may be depressed against the operation of said spring bypulling thereon or whenever pressure is applied either to the supportsof the wheels K or through the arm A. In ordinary forms of constructionthis result is accomplished by means of a spring connected with thelower end of the arm A, whereby said arm is given a springactuatedmovement, and this manner of connecting the arm A with the car isexpensive and not so convenient and effective as that herein described.I also connect with the ontwardly-directcd portions of the spring G, bywhich the wheels K are supported, cords, chains, or other devices L,which extend downwardly and are connected at M, from which point asingle cord, chain, or other dc vice 0 extends, and said cord or chain 0is under the control of the conductor or motorman and may be operated todepress the wheels K whenever desired, and also for separating saidwheels in order to permit of the introduction of the trolley wire orconductor between the same.

The spring-arms G are so constructed that by simply pulling 011 the cord0 the wheels will be separated, and when thus separated the trolley wireor conductor may be passed between said wheels,after which the arms andthe wheels assume the position shown in Fig. 2,and the trolley wire orconductor passes through a circular groove formed by the annular grooves7; in said wheels, and said trolley wire or conductor and said wheels Kcannot be separated under ordinary circumstances and are notliable tobecome detached or disconnected in the operation of the car.

In Fig. 3 the spring G is of slightly-dilferout form, and the extensionsor shafts g, 0011- nected therewith, are extended orlengthened and thewheels K assume the form of spools, and by this arrangement the spacebetween said wheels is much elongated and the trolleywire is free tomove between the spools, and is also capable of vertical movementwithout being detached or disconnected from the spools or wheels.

This device is simple in construction and operation and is alsocomparatively inexpensive, while being perfectly adapted to accomplishthe result for which it is intended, and it is evident that changes inand modifications of the construction herein described may be madewithout departing from the spirit of my invention or sacrificing itsadvantages; and I reserve the right to make all such alterations thereinand modifications thereof as fairly come within the scope of theinvention.

Having fully described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination with a trolley-arm, which isadapted to be secured to a car, of a frame supported thereby, and aspring-operated rod which passes therethrough, said rod being providedat its upper end with springarms, and two wheels or pulleys which aremounted thereon, and which are arranged horizontally, and provided withperipheral grooves, and between which the trolley wire or conductor isadapted to pass, said springarms by which the wheels orpulleys aresupported being each provided with a cord or other device which extendstherefrom, substantially as shown and described.

2. The combination with a trolley-arm, which is adapted to be rigidlysecured to a car, of a frame supported on the upper end thereof, aVertically-movable spring-operated rod supported in said frame, andspring-arms connected with the upper end of said rod, and

a grooved wheel or spool mounted on each of said arms, and between whichthe trolley wire or conductor, is adapted to pass, and means connectedwith said spring-arms for separatin g the same, substantially as shownand described.

3. The combination with a trolley arm, which is adapted to be secured toa car, of a frame supported thereby, a spring-supported rod which passesvertically therethrough, and spring-arms connected with the upper end ofsaid rod, each of which supports a pulley provided with a peripheralgroove, said pulleys being arranged side by side, and the groovestherein, being adapted to receive the trolley wire or conductor, andmeans for separating said spring-arms, substantially as shown anddescribed.

4:. The combination with a trolley-arm, which is adapted to be rigidlysecured to a car, of a vertical frame mounted thereon, aspring-supported device connected therewith, and provided withspring-arms, each of which supports a peripherally grooved pulley, saidpulleys being arranged horizontally, and means for separating saidpulleys, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing witnesses, this 28th day of April,1896.

OT 0 HOLZ.

Witnesses:

E. Norr SCHERMERHORN, J. WARD SCHERMERHORN.

